MATERIAL: These sports headbands are made of polyethylene fiber. These headbands are sweat-absorbent, breathable and dry, preventing sweat from dripping on your eyes and neck during sports. ELASTIC SIZE: The unisex elastic headbands are 21cm long and 3cm wide, stretchable and easy to adjust to different head shapes, very soft and elastic. HIGH ELASTICITY: Good elasticity ensures that the headband fits well on the head but does not put pressure on the head, comfortable and flexible, suitable for most people. FLEXIBLE AND COMFORTABLE: Good elasticity ensures that the headband fits tightly on the head and does not fall off easily. DURABLE: The headband will not be deformed by repeated stretching and will not fall off when worn, so you can wear it for a long time with peace of mind. If it gets dirty from sweating, you can hand wash it and reuse it. WIDE APPLICATION: The headband is suitable for various activities or occasions, such as cycling, walking, running, fishing, basketball, football, tennis, yoga, facial cleansing, sports and fitness.